<!DOCTYPE html>
<html>
<head>
    <meta charset="UTF-8">
    <title>Insert title here</title>
</head>
<style>
    body {
        background-repeat: no-repeat;
        background-size: 100% 520px;
    }

    p {
        font-family: cursive;
        font-size: 60px;
        position: absolute;
        top: 35%;
        left: 40%;
    }
</style>
<body>
<p>欢迎使用</p>
</body>
</html>